MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='881b8940b0202ac9fb66d5323c4dfabb',`time`=1711727568,`ip`=X'03552664',`location`='/showthread.php?tid=259&pid=1635',`useragent`='claudebot',`location1`=8,`location2`=259,`nopermission`=0